Temptation (S02E12)
Following a Xana assault, Jeremie insists on making another return trip, despite there being no actual damage done by Xana. When his friends challenge him, he becomes defensive and angry, adamantly claiming it's essential. Further inquiries yield the same reaction. After the next trip, Yumi and Ulrich discover Jeremie unconscious in his room. They search for clues about his condition and manage to decode a video diary on his computer. They find out that he has been using the return trips to boost his intelligence. Just as they're about to take him to the hospital, Xana strikes again, seizing control of the ambulance with Yumi inside, steering it toward the river. Now, the remaining friends must rescue Jeremie and deactivate the tower without his assistance.